Duplex 2205 DIN125
Special Stainless Steel Flat washer
What is Duplex stainless steel 2205 ?
Duplex stainless steel 2205 (UNS S32205) is an advanced material that combines austenitic and ferritic dual-phase structures. With its high strength, corrosion resistance, and versatility in multiple fields, it has become a key material in modern industry surely.
The chemical composition of duplex stainless steel 2205 has been carefully designed, and its core elements include Chromium (Cr): 22.0-23.0%, Molybdenum (Mo): 3.0-3.5%Â ,Nickel (Ni): 4.5-6.5% and other elements.
Its fasteners including washers, bolts,nuts are commonly used in industries such as oil and gas, chemical, seawater desalination, paper and food.
Technical Introduction- Comprehensive Analysis of Duplex Stainless Steel 2205

DETAIL DIMENSIONS OF Duplex 2205 DIN125 :
| M3 | M4 | M5 | M6 | M8 | M10 | |
| dc inner dia | 3.2-3.38 | 4.3-4.48 | 5.3-5.48 | 6.4-6.62 | 8.4-8.62 | 10.5-10.77 |
| d outer dia | 6.64-7 | 8.64-9 | 9.64-10 | 11.57-12 | 15.57-16 | 19.48-20 |
| h thickness | 0.45-0.55 | 0.7-0.9 | 0.9-1.1 | 1.4-1.8 | 1.4-1.8 | 1.8-2.2 |
| M12 | M14 | M16 | M18 | M20 | M22 | |
| dc inner dia | 13-13.27 | 15-15.27 | 17-17.27 | 19-19.33 | 21-21.33 | 23-23.33 |
| d outer dia | 23.48-24 | 27.48-28 | 29.48-30 | 33.38-34 | 36.38-37 | 38.38-39 |
| h thickness | 2.3-2.7 | 2.3-2.7 | 2.7-3.3 | 2.7-3.3 | 2.7-3.3 | 2.7-3.3 |
| M24 | M27 | M30 | M36 | M42 | M48 | |
| dc inner dia | 25-25.33 | 28-28.33 | 31-31.39 | 37-37.62 | 43-43.62 | 50-50.62 |
| d outer dia | 43.38-44 | 49.38-50 | 55.26-56 | 64.8-66 | 76.8-78 | 90.60-92 |
| h thickness | 3.7-4.3 | 3.7-4.3 | 3.7-4.3 | 4.4-5.6 | 6-8 | 7-9 |
MATERIAL: 1.4462 Duplex Stainless Steel (UNS S32205)
Metric or Inch: Metric
Finish: Plain
RoHS Compliant
More information about screws made of Nickel Alloys and Special Stainless Steel  material please check:
Nickel Alloys and Special Stainless Steel
Shanghai Screwtool is a long-standing OEM supplier who has served US and Europe fastener industry for over 20 years. If you have regular demands for screws or fasteners, we recommend that you can contact us directly (info@shscrewtool.com) for economic offer and complete service.










